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Issue 22, 2017
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A Fe3O4–carbon nanofiber/gold nanoparticle hybrid for enzymatic biofuel cells with larger power output

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Abstract

Enzymatic biofuel cells (EBFCs) are considered as a promising approach to meet the requirements of power sources. Electrode materials, which are significant factors to affect the power output of EBFCs, have aroused great interest. Herein, we developed an EBFC using a Fe3O4–carbon nanofiber/gold nanoparticle hybrid as the substrate electrode for improving the performance of the power output. The open-circuit voltage (Eocv) of the designed EBFC reached 0.68 ± 0.03 V, and the maximum power density (Pmax) reached 126 ± 4.5 μW cm−2. The as-prepared EBFC showed 3 times higher Pmax compared to the EBFC based on the carbon nanofiber/gold nanoparticle hybrid, which was ascribed to the good electrocatalytic activity of Fe3O4 NP loaded carbon nanofibers (CNFs), the 3D porous structure of CNFs as well as the uniform distribution of Au NPs. The Fe3O4–CNF/gold nanoparticle hybrid is considered as a promising candidate for constructing electrochemical biosensors and biofuel cells.

Graphical abstract: A Fe3O4–carbon nanofiber/gold nanoparticle hybrid for enzymatic biofuel cells with larger power output

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Supplementary files

Article information


Submitted
03 Mar 2017
Accepted
02 May 2017
First published
02 May 2017

J. Mater. Chem. A, 2017,5, 11026-11031
Article type
Paper

A Fe3O4–carbon nanofiber/gold nanoparticle hybrid for enzymatic biofuel cells with larger power output

Y. Ji, P. Gai, J. Feng, L. Wang, J. Zhang and J. Zhu, J. Mater. Chem. A, 2017, 5, 11026 DOI: 10.1039/C7TA01931A

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